參數(shù)資料
型號(hào)： TSC2111IRGZR
廠商： TEXAS INSTRUMENTS INC
元件分類： 音頻／視頻放大
英文描述： 0.4 W, 1 CHANNEL, AUDIO AMPLIFIER, QCC48
封裝： PLASTIC, QFN-48
文件頁(yè)數(shù)： 19/99頁(yè)
文件大?。?/td> 1143K
代理商： TSC2111IRGZR
TSC2111
SLAS495A JUNE 2006 REVISED OCTOBER 2007
www.ti.com
26
See Table 3 for various AGC programming options. AGC can be used only if microphone input or Cell-phone
input is routed to the ADC channel. When both microphone input and Cell-phone input are connected to the
ADC, AGC is automatically disabled.
Decay Time
Target
Gain
Input
Signal
Output
Signal
AGC
Gain
Attack
Time
Figure 19. AGC Characteristics
Table 3. AGC Settings
MIC HEADSET INPUT
MIC HANDSET INPUT
CELL-PHONE INPUT
BIT
CONTROL
REGISTER
BIT
CONTROL
REGISTER
BIT
CONTROL
REGISTER
AGC enable
D0
01H
D0
1EH
D0
24H
Target gain
D7D5
01H
D7D5
1EH
D7D5
24H
Time constants (attack and decay time)
D4D1
01H
D4D1
1EH
D4D1
24H
Noise threshold
D13D11
24H
D13D11
24H
D13D11
24H
Noise threshold flag
D11
04H
D11
04H
D14
24H
Hysteresis
D10D9
1DH
D10D9
1DH
D10D9
24H
Debounce time (normal to silence mode)
D8D6
26H
D8D6
26H
D8D6
27H
Debounce time (silence to normal mode)
D5D3
26H
D5D3
26H
D5D3
27H
Max PGA applicable
D15D9
26H
D15D9
26H
D15D9
27H
Gain applied by AGC
D15D8
01H
D15D8
1EH
D14D8
1FH
Saturation flag
D0
04H
D0
04H
D7
1FH
Clip stepping disable
D3
06H
D3
06H
D8
24H
NOTE: All settings shown in Table 3 are located in Page 2 of control registers.
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